Inhaler



(No'Model.)

H. D. CUSHMAN.

INHALER.

UNITED STATES fPATENT OFFICE.

HENRY D. CUSHMAN, OF THREE RIVERS, MICHIGAN.

INHALER.

SPECIFICATION forming part of Letters PatentNo. 476,132, dated May 31,1892.

Application filed May 18,1891.

T0 a/ZZ whom it may concern:

Beit known that I, HENRY D. CUSHMAN, of Three Rivers, countyof St.Joseph, and State of Michigan, have invented certain new andusefulImprovements in Inhalers, of which the following is aspecification, reference being had to the accompanying drawings.

My improvements relate more particularly to the class of inhalers knownas mentholinhalers, in which crystalline menthol is the medicament used.

The object of my invention is to provide an inhaler of simpleconstruction that can be conveniently opened for use and readily closedwhen not in use to prevent volatilization and escape ot' the menthol.

My present invention relates to the mentholinhalers of the kind in whicha rotating screw-threaded sleeve is employed, and in which by therotation of the sleeve the casing is opened or closed at will at bothends, so that when opened air will pass through from end to end andcarry the menthol to bel inhaled in the usual Way and when closed thementhol will be protected.

Referring to the accompanying drawings, Figure l is a longitudinalsection of one form of my inhaler. Fignla is an end View of the sleeve.Fig. 2 is a similar' longitudinal section of a modiliedform in which thescrewr part of the sleeve is outside of the casing. Fig. 3 is like Fig.l, except as to details eX- plained below.

Referring to Figs. l and 2 upon' the drawings, A indicates the casing,which is open at both ends and screw-threaded at one end to receive whatI will call a sleeveB, also correspondingly screw-threaded.

C indicates openings in the sleeve, and D a thumbpiece for rotating thesleeve to screw it in and out.

E indicates perforated Stoppers within the Serial No. 393,188. (Nomodel.)

are driven against the tapering open end of the casing, and thus closedtightly together. Vhen the sleeve is rotated in the opposite direction,so as to screw it back, the tapered strips formed at the slitted end ofthe sleeve Will by their resiliency separate from each other enough toopen an air-passage through the inhaler.

There are various other formal modifications in which the substance ofInyinvention might be embodied, its principle consisting in theemployment of an open-ended casing and a screw-threaded sleeve adaptedto open and close both ends of theinhaler simultaneously, so as toprepare it for use or preserve its contents.

The perforations X and Y Will permit the air to pass through and are sosmall as to prevent crystals from coming out when the sleeve is movedout. When it is moved in, both sets of perforations are closed. This isa very simple and excellent form of my in* vention.

In an inhaler, the combination, with a screw-threaded casin g open atboth ends, of a sleeve, also open at both ends and screwthreaded andadapted to be rotated to simultaneously unstop the openings in thecasing and to close them, substantially as set forth.

In testimony of all which I have hereunto subscribed my name.

HENRY D. CUSHMANl Witnesses: y

W. A. I-IUNTLEY, GEO. E. MILLER.

